![]() Over its production years, the Evolution underwent several refinements and improvements. ![]() The Evolution engine continued production until 2000 for the Big Twin motorcycles and until 2018 for the Sportster line up. It was designed to improve performance, reliability, and efficiency in Harley-Davidson motorcycles. The Evolution Engine was introduced as a replacement for the outdated Harley shovelhead engine which had been used since 1966. Harley Evo Engine Overview Evolution Engine Development The successful V twin engine design contributed to Harley-Davidson’s resurgence in the motorcycle market Introduced in late 1983, the Evolution engine quickly gained popularity among American motorcycle enthusiasts The Harley-Davidson Evolution engine marked a significant improvement in performance and reliability from its by then previous outdated engine designs. Evolution engine comparison to Twin Cam?.What are common Evolution engine issues?.Thermal Management and Overheating Issues.In the 1990s, Harley Davidson decided to split its audience into two main camps. The first one says that traditional Evolution engines are the best, while the second one is sure that the newer Twin Cam engines are much better. We've been asked many times what we think about these two main types of Harley Davidson motorcycle engines, and we've finally decided to write an article about that. ![]() In our today's article, we won't say much about the motorcycles, the pros and cons of them, and also about the complicated technical side of the question. We'll try to figure out which type of engine is the best for Harley motorcycle buyers. The practical side of the engines - which one is better?.Technical solutions in Twin Cam and Evo engines.The most important things that we'll outline are as follows: Longevity and reliability of the Evo engines vs Twin Cam engines.Let's get started! Evolution Harley Davidson engines - main facts Which engine is better for different types of riding?. This engine was introduced in 1984 and it's still a very popular choice. Now they have numerous kinds of Evo engines for sale - starting with 883 cc and finishing with 1337 cc. These engines aren't very big and powerful, they are all-purpose for motorcycles and are really reliable. Some experts say that the Evo engine actually saved the company from bankruptcy back in the 1980s. the engines are quite reliable, they can go around 80 000 to 100 000 miles.įor a bike engine, to have a 100 000-mile longevity is a pretty good thing.the engine is very rebuildable, you can repair it after any problems and damages.the Evo engines in Sportsters and in Big Twin bikes were extremely different.air cooling appeared to work well because aluminum is a good heat s head and cylinders are made of aluminum which helps reduce the weight of the whole unit.Here are some facts about the Evo engine: This was the last hope to get out of the crisis and start selling more motorcycles. The engine should be serviced regularly and cared well for in order to show that mileage. But anyway, we know guys who have ridden their HDs even longer than that. Twin Cam Harley Davidson engines - main facts Evo engines are really good even now when you can find a lot of modern technologies. In 1998 Harley Davidson introduced bigger Twin Cam engines and they were producing the engines up until 2017. ![]() These engines differed much from the Evolution engines but they also shared many common features with numerous other Harley Davidson engines. The displacement of these engines varies from 1450 cc to 1801 cc.apparently, they have two cams, this is the second model in HD history that uses two cams.Here are some features of the Twin Cam engines: The important fact is that the company managed to gather all the well-known technologies and to create a new technological engine for its big bikes.
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